Page 21 of 551
19
Quick Reference Guide
Fuel Cell Insulating Fluid
Fuel cell insulating fluid (FC insulating fluid) uses a specifically designed fluid with high electrical insulation properties in order to safely cool 
the fuel cell.
Never add water, other commercial coolants, or genuine Honda inverter coolant to the cooling system. Doing so will cause damage to the 
fuel cell.
Consult an authorized Honda Clarity Fuel Cell dealer to replenish or change the fuel cell insulating fluid.
FC Insulating Fluid Reserve Tank
Inverter Coolant Reserve Tank
18 CLARITY FUEL CELL PPO-31TRT6100.book  19 ページ  2017年11月21日 火曜日 午後3時3分 
     
        
        Page 39 of 551
37
Quick Reference Guide
Maintenance (P 449)
Under the Hood (P 457)
● Check inverter coolant and windshield washer fluid. Add 
when necessary.
● Check brake fluid.
● Check the 12-volt battery condition monthly.
aPull the hood release handle under the corner of the 
dashboard.
bLocate the hood latch lever,  push it to the side, and then 
raise the hood. Once you have raised the hood slightly, you 
can release the lever.
cWhen finished, close the hood  and make sure it is firmly 
locked in place.
Lights (P 463)
● Inspect all lights regularly.
Wiper Blades (P 465)
● Replace blades if they leave streaks 
across the windshield.
Tires (P 468)
● Inspect tires and  wheels regularly.
● Check tire pressures regularly.
● Install snow tires for winter driving.
18 CLARITY FUEL CELL PPO-31TRT6100.book  37 ページ  2017年11月21日 火曜日 午後3時3分 
     
        
        Page 85 of 551
83
Safe Driving
Safety Labels
Label Locations
These labels are in the locations shown. They warn you of potential hazards that  can cause serious injury or death. Read these labels 
carefully.
If a label comes off or becomes hard to read (except for the U. S. dashboard label which may be removed by the owner), contact a n 
authorized Honda Clarity Fuel Cell dealer for a replacement.
Dashboard Sun Visors
Inverter Coolant 
Reserve Tank Cap
FCVCU
PCU Air Conditioner System
18 CLARITY FUEL CELL PPO-31TRT6100.book  83 ページ  2017年11月21日 火曜日 午後3時3分 
     
        
        Page 292 of 551

290
uuGeneral Information on the Audio System uHonda App License Agreement
Features
E. Information Coll ection and Storage
1.  Information Collection, Use, Tr ansmission and Storage of Data.
 Consent to Use of Data: You ag ree that HONDA and PROVIDERS may 
collect and use your information gathered in any manner as part  of product support services related to the SOFTWARE or related services. 
HONDA may share such information  with third parties, including, without limitation, PROVIDERS, th ird party software and services 
suppliers, their affiliates and/or their desi gnated agents, solely to improve their products or to provide services or technolo gies to you. 
HONDA, third party software and systems s uppliers, their affiliates and/or their designated agent may disclose this information  to others, 
but not in a form that pe rsonally identifies you.
2.  Information Storage.
 Depending on the type of multimedia system you have in  your VEHICLE, certain information may be stored for ease 
of use of the SOFTWARE including, without limitation, search hi story, location history in certain applications, previous and saved 
destinations, map locations within certain applications, and device numbers and contact information.
(a) Vehicle Health Information.
 Your VEHICLE may remotely trans mit information regarding the status and health of your VEHICLE 
(“VEHICLE INFORMATION”) to HONDA without  notification to you. VEHICLE INFORMATION may contain VEHICLE maintenance and 
malfunction status that is derived from VEHICLE diagnostic data  and includes, but is not limited to, status of powered doors and windows, 
battery life data, battery charging data, VEHICLE speed, coolant temperat ure, air compressor revolution, output power, warning codes, 
diagnostic trouble codes, fuel injection volume, and engine rotati ons per minute. VEHICLE HEALTH INFORMATION may be used by HONDA 
for research and development, to deliver  HONDA SERVICES and information to you, and to  contact you, and is retained only for a period 
of time necessary to fulfill these goals.
(b) VEHICLE Geolocation Data (non-navigation/map based).
 If you opt-in to geolocation-based SERVICES, your vehicle’s geolocation data 
(latitude and longitude) will be automatically se nt from your VEHICLE to HONDA and PROVIDERS.
(c) You understand that the inputting or uploading of information to your VEHICLE’s multimedia system or the SOFTWARE or SERVIC ES is 
at your own risk and that HONDA is not responsible for unauthorized access to or use of any personal or other information. All  information 
uploaded to the SOFTWARE and SERVICES may be stored on your VEHICLES’s multimedia system and you  understand that the security and 
safety of your VEHICLE’s multimedia  system is your sole responsibility.
18 CLARITY FUEL CELL PPO-31TRT6100.book  290 ページ  2017年11月21日 火曜日 午後3時3分 
     
        
        Page 451 of 551

449
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 450
Safety When Performing Maintenance...451
Parts and Fluids Used in Maintenance Service ........................................... 452
Maintenance Minder
TM..................... 453
Maintenance Under the Hood Maintenance Items Under the Hood .. 457
Opening the Hood ........................... 458
Inverter Coolant ............................... 459
Transmission Fluid ............................ 461
Brake Fluid ....................................... 461 Refilling Window Wa
sher Fluid......... 462
Replacing Light Bulbs ....................... 463
Checking and Maintaining Wiper 
Blades .......................................... 465
Checking and Maintaining Tires
Checking Tires ................................. 468
Tire and Loading Information Label .. 469
Tire Labeling .................................... 469
DOT Tire Quality Grading (U.S. Vehicles).. 471
Wear Indicators................................ 473
Tire Service Life ................................ 473
Tire and Wheel Replacement............ 474 Tire Rotation .................................... 475
Winter Tires ..................................... 476
12-Volt Battery ................................. 477
Remote Transmitter Care Replacing the Button Battery ........... 479
Climate Control System Maintenance.. 480
CleaningInterior Care .................................... 481
Exterior Care.................................... 483
Accessories and Modifications ........ 487
18 CLARITY FUEL CELL PPO-31TRT6100.book  449 ページ  2017年11月21日 火曜日 午後3時3分 
     
        
        Page 459 of 551
457
Maintenance
Maintenance Under the Hood
Maintenance Items Under the Hood
Washer Fluid 
(Black Cap)
12-Volt BatteryBrake Fluid 
(Black Cap)
Inverter Coolant 
Expansion Tank 
Cap
Inverter Coolant 
Reserve Tank
18 CLARITY FUEL CELL PPO-31TRT6100.book  457 ページ  2017年11月21日 火曜日 午後3時3分 
     
        
        Page 461 of 551

459
uuMaintenance Under the Hood uInverter Coolant
Continued
Maintenance
Inverter Coolant
This coolant is premixed with 50% an tifreeze and 50% water. Do not add any 
straight antifreeze or water.
We recommend you check the  inverter coolant level every time you refuel. Check 
the reserve tank. Add the in verter coolant accordingly.
1. Make sure the motor and radiator are cool.
2. Check the amount of coolant in the reserve 
tank.
u If the coolant level is below the  MIN 
mark, add the specified coolant until it 
reaches the  MAX mark.
3. Inspect the cooling system for leaks.
Specified coolant: Ho nda Long Life Antifreeze/Coolant Type 2
■Reserve Tank
1Inverter Coolant
NOTICE
Genuine Honda inverter cool ant is a 50/50 mixture of 
antifreeze and water that can withstand freezing at 
temperatures as low as a bout –31°F (–35°C). If your 
vehicle is consistently subjected to temperatures 
below this, the concentration of antifreeze in the 
coolant should be  increased. Consult an authorized 
Honda Clarity Fuel Ce ll dealer for details.
If Honda antifreeze /coolant is not available, you may 
use another major brand of non-silicate coolant as a 
temporary replacement. Check that it is a high quality 
coolant recommended fo r aluminum motors. 
Continued use of any non-Honda coolant can result 
in corrosion, causing the cooling system to 
malfunction or fail. Have  the cooling system flushed 
and refilled with  Honda antifreeze/coolant as soon as 
possible.
3WARNING
Removing the expansion tank cap while the 
motor is hot can cause the coolant to spray 
out, seriously scalding you.
Always let the motor and radiator cool 
down before removing the expansion tank 
cap.
MAX
Reserve 
TankMIN
18 CLARITY FUEL CELL PPO-31TRT6100.book  459 ページ  2017年11月21日 火曜日 午後3時3分 
     
        
        Page 462 of 551
uuMaintenance Under the Hood uInverter Coolant
460
Maintenance
1. Make sure the motor and radiator are 
cool.
2. Turn the expansion tank cap 1/8 turn 
counterclockwise and  relieve any pressure 
in the cooling system.
3. Push down and turn the expansion tank cap 
counterclockwise to remove it.
4. Pour coolant into the expansion tank until it 
reaches the  MAX mark.
5. Put the expansion tank cap back on, and 
tighten it fully.
■Radiator 1Inverter Coolant
Do not add rust inhibitors  or other additives to your 
vehicle’s cooling system. They may not be compatible 
with the coolant or with the motor components.
1 Radiator
NOTICE
Pour the fluid slowly and ca refully so you do not spill 
any. Clean up any spills immediately; they can 
damage components in the motor compartment.
Expansion 
Tank Cap
MAX
Reserve 
TankMIN
18 CLARITY FUEL CELL PPO-31TRT6100.book  460 ページ  2017年11月21日 火曜日 午後3時3分